The report recommends that most Americans increase __1__ activity to a moderate level and make changes in food __2__ and calories intake to maintain ideal weight. Most of us --- even those of us at ideal weight --- need to eat __3__ fat so that no more than 30% of our daily calories will come from fat.
That means cutting __4__ on red meat and whole milk dairy products. __5__, eat fish, chicken without skin, lean meats, and low-fat and no-fat dairy products.

1. A mental B spare C physical D chemical

2. A choose B chooses C chose D choices

3. A little B much C less D more

4. A up B down C hard D off

5. A However B Or C Indeed D Rather

1．C. A和C是詞義相對(duì)的一組詞，重點(diǎn)考察；而“身體活動(dòng)”符合文章主題。

2．D. 空格處需要名詞。

3．C. fat是不可數(shù)名詞，且從句意上看 less合適。

4．B. cut down on是減少。

5．C. 從空格所在的使用結(jié)構(gòu)排除B和D，再用排除法借助句意關(guān)系排除A。